Set the execution progress of a process object. The progress is a floating number in [0,1] with 0 meaning no progress and 1 meaning the filter has completed execution. The ProgressEvent is NOT invoked. This method is deprecated because filters should not be calling SetProgress directly but should be using UpdateProgress or IncrementProgress instead.

Reset the progress accumulator. This method should not be necessary because this functionality is already present in the filter constructor.

Reset the filter progress but keep the accumulated progress. This method is deprecated because the ProgressAccumulator now internally checks if a filter has been restarted and updates the accumulated progress automatically. This method also used to have the unfortunate side effect of forcing filters to rerun even if their parameters and input had not changed. This is because it called SetProgress(0) on the filters, which triggered a ModifiedTime and thus caused the filters to rerun. To avoid this behavior, the implementation of this method is now empty.